Gearing.



H.l WOLKE. GEARING.

APPLICATION FILED SEPT.. 12, 1907.

Patented oet. 5, 1909.

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sedersi.

UNITED STATES PATET Uldlillt.

HERMAN WOLKE, OF ORANGE, NEW JERSEY, ASSIGNOR TO NEW JERSEY PATENT COMPANY, OF VJ'EST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

GEARING.

To all whom it may concern:

Specicatonf Letters Patent.

atentcd Oct. 5, '15h09.

Application filed September 12, 1907. Serial No. 392,480.

lsiadetail showing the nianncr in which the lie it known that l, lll-:unix Woran-z, arfworni gear is journalcd in the carriage.

citizen of the United States, and a resident of Orange, in the county of Essex and State of VNew Jersey, have invented certain new and useful improvements `in Gearing, of which the following is a description.

My improvement relates to plnnographs and particularly to means for advancing the carriage which bears the recorder or reproduccr, transversely to the direction of moveinent of the surface of the record, so that the stylus will traverse a spiral path on the record.

The object of my invention is the production of improved means whereby the carriage may be advanced, either directly by the rotating feed screw, has hitherto been the practice, or whereby at the will of the operator, the carriage may be advanced at each revolution of the feed screw, a distance bearing any desired ratio to the pitch of the said feed screw. This is desirable in order that a single instrument may be used for the recording or reproduction of records, the record grooves whereof have different pitches. The ordinary phonographs now in use are adapted for the reproduction of the ordinary standard sound record, the grooves whereof have a pitch of substantially ono oneihundredth of an inch. As records can now be produced with a very much smaller' pitch, preferably one t'.\\'olnmdredths of an inch, and since it is inipracticable to manufacture feed screwswith so sniall a pitch, it is an object of my invention to adapt the phonograph for the recording or reproduction of records of either of the sorts above mentioned, by means of a simple adjustment and with as little change as possible from the present form of this instrument.

lll ith this and related objects in mind, my

invention consists of the features hereinafter set forth and claimed.

" In order that my invention may be more v fully understood, reference is hereby made to the accompanying drawings, in whichthe same reference characters are applied uniformly to the saine parts, and wherein- Figure l is a cross-sectional view of one form of device. constructed in accordance with my invention; Fig. 2 is a cross-sectional View, taken at right angles to Fig. l .and on 'the line 22 in the said ligure and looking inthe direction of the arrow, and Fig.

A.provided with a stud/19.

1s attached to the crank shaft, which serves to indicate the number of rotations which into a position which alniost'vertical. A- slot 8 is formed in this downwardly extend ing portion. A bracket 9 is secured to the lower portion of the carriage and a'groove l0 is formed in t-he carriage. immediately adjacentto this bracket. A cylindrical rod 'll is received within the slot S and the groove 10 and rests against the bracket t). Surrounding this rod is a sleeve l2. At that end of the sleeve adjacent to the feed screw is a worin gear 18, and at thc opposite lend of the sleeve and secured thereto is a toothed wheel ll, the teeth whereof aijefextremely sharp and hard. A portion of this wheel rests within a cut-away part of the carriage 3, and the hardened teeth on its per'phery contact with the guide'rod 2, being held thcreagainst by means of a spring l5 which is secured upon an arm 1G. on the carriage 3. Opposite the spring l5, and with its end bearing against the periphery of the wheel llt, is a much more powerful spring 17. .This spring is supported and its end held from cont-act with the toothed wheel, by means of a crank 1S. the shaft whereof is An indicator 2O the record will make, while the carriage is being advanced through a distance of one inch. WV hen the carrlage 3 1s raised by means of the lever 5, the rod 11 sliding in portion of the weight of the carriage isv supported by this arm.

The Opera-tion'of theA device is as follows:

.at each rotation of the feed screw a distance depending upon the ratio between the diameters of the worm gear and the toothed wheel l-il. When these are of Substantially the Same diameter as' in the form illustrated, and a feed screw having a pitch of .0l of an inch is used, the carriage will be ad vantfed at. each rotation thereof, a distance equal to one-half of the pitch of the feed screw, or .U03 of an inch. lf a worm gear or a toothed wheel of a dil'lerent size were used, the amount of advance would of course be tlil'l'erent, dependingronly upon the ratio between the liameters of these parts. '.l`he diameter of the feed screw may vary somewhat wit-hout ali'ecting the operation of the device as the worm gear 13 rotates at a speed which depends onl)- upon the pitch and speed of rotation ofthe feed screw and is independent of its diameter.

In order to adapt the instrument to the reproduction of the ordinariv sound record having one lmndred threads to the inch, the crank 18 is turned downward through an angle of 90, bringing the figures lot) on the indicator 20 to the top. This movement of the crank allows the spring 1T to descend upon the toothed wheel l t, holding the Same againSt rotation, and pushing it' away from the'guide rod 2, since this springis much stiffer and more powerl'ul than the spring l5 which opposes it. 'lhe toothed wheel llbeing thus locked against rotation, the worm gear Vtis likewise held against rotation, and for this reason it acts, on the rotation ot `the feed screw, precisetty lilte the ordinaryv feed nut now in common use, and the carriage is advanced at eaeh revolution ol1 the feed Screw a distance which is the same as' the pitch of the Screw.

llaving now described my invention, what l claim isA l. ln a device of the class deseribcd,.-the combination oli a subslanliallvsmooth guide rod. a carriage movable thereon and sharp pointed means borne b'v thtI carriage and cooperating with the guide rod for moving Atht` carriage ou the said rod` and actuating means therefor, substantially as set forth.

2. ln a device of thc class described, thc combination ol` a substantialtv smooth guide rod, :t carriagt` movable thcrcon` u toothed wheel rotatabl)Y mounted ou the said earriagc and cooperating with the guide rod for moving the carriage on the saidtod. and means for imparting rotation to said wheel Substantially as set forth.

P. ln a device of the claas described, thc

combination of a substantially smooth guide rod, a carriage movable thereon, a'harclened toothed wheel rotatable upon said carriage and cooperating with the saidguide rod for moving the said carriage on the rod, and actuating means for said wheel, substantially as set forth.

-la In adevice of the class described, the combination ofa Substantially Smooth guide rod, a carriage movable thereon, a feed screw, means borne by the carriage and cooperating with the said rod for nnivingr the carriage on the rod, and means under the control of the feed screw fo* actuating the tirst named meanS, substantially as set forth.

In a device of the class described, the combination of a substantially smooth guide rod, a carriage movable thereon, a feed screw, a toothed wheel rotatably mounted on the Said carriage and cooperating with the said guide rod for moving the Said carriage on the rod, and means under the control of the feed screw for rotatin(r said wheel, substantialtvv as set forth.

3. In a device of the class described, the combination of a subst antially smooth guide rod, a carriage movable thereon, a feed screw, a wheel .having hardened teeth rotatabl)Y mounted upon the said carriage and cooperating with the guide rod for moving thel carriage. and means under the control of the feed screw for rotating` the said wheel, snbstantialliv as set forth. I "l t 7. In a device of the class described, the combination of a guide rod, a carriage movable thereon. friction means borne by the carriage and spring pressed against ythe Said rod for moving the carriagt` along the Said rod, and actuating means therefor, meanfs' lor moving Ieaid friction means out. of contact with said rod, substantially as set forth.

H. ln a d evice ofA the classtlescribed, the combination of a guide roth a carriage movable thereon, a feed screw. a toothed wheel rotatably mounted on the said carriage, a .spring for pressing the wheel against the said rod. and means under the control of the feed screw for rotating the said toothed ,wheel` substantiallv'as set-forth.

il. ln-a dev1ce of the class described, theVv tombination of a guide roth a carriage mov-- abltl thereon. a vl'eed sci-ew, a `worm gear on ,said t-arriage and meshing with the said feed screw` a toothed'wlwel rotatable on the said carriage.4 spring pressed against said rod and dri\en from the said worm gear` Substantallv as set'y forth.

lt). ln a device of the class described, the combinationof a {stationair}r member. a movable carriage, a feed Screw, a worm wheel on said carriage and meshing with the said feed screw. means actuated from said worm wheel and cooperating with said stationary meinher t'or moving the said carriage and releasable means for holding the said worm wheel against rotation and disengaging the first said last named spring to bear against the named' means from engagement with the stationary member, substantially as set forth.

l1. In a device, of the class described, the

combination of a substantially smooth guide rod, a carriage movable thereon, a feed screw, a worm wheel movablyk and rotatably mount! ed on said carriage and meshing with said feed screw, and means actuated by the worm wheel and cooperating with the guide rod for moving the said carriage, substantially as set forth.

12. ln a device of the classl described, the combination of a guide rod, a carriage movable thereon, a feed screw, a worm wheel on said carriage, means actuated by .the said' worm wheel for moving the said carriage, a

spring` t'or pressing the said means against a guide rod, and a more powerful, releasable spring acting in opposition to the first named spring and operating when released to pre vent tl.e engagement of the saidy carriage moving means with the said guide rod and to hold the worm stanfall'uv as set forth.

l-. l n afdevice of the classdescribed, the combination of a movable carriage, a feed screw. rotatable means on the said carriage for advancing the same at a different rate of ad -ance from that imparted directly by the feed screw, and means forlocking the said means against rotation, substantially as set forth.

il t. ln a device of the class described, the combination ef a movable carriage, a member relatively stationary thereto, a feed screw, a worm gear normally rotatable on said carriage and meshing with the said feed screw, means actuated by the said worin gear and cool'ierating with said vrelatively stationary member for moving the said carriage, and means for locking the worm gear against rotation, .substantially as set forth.

l5. in a device of the class described, the combination of a guide rod, a carriage mov able thereon, a feed screw, a spring arm on the said arriage, a worml wheel and a toothed wheel journaled between' thesaid carriage and the. spring arm,- the""former meshing with the lfeed screw and the'latter contacting with the'gnide rodand a spring for holding" the toothed wheel in contact with the guide rod, substantially as set forth.

lo. in a device of the class described, the combination of a guide'rod, a carriage movable thereon, a feed screw, a spring arm on the said carriage, a worm .wheel and a toothed wheel joarnaled between the said carriage and the spring' arm, the former meshing with thefecd `screw and the latter contacting with `the guide rod, a sprin r for holding the toothed wheclin contact with the guide rod, a more powerful spring in opposition to the first spring, a crank and means under the control of the crank for releasing the gear against rotation, subtoothed wheel anil hold it awayfroni the guide rod and maintain thei worm gear against rotation, substantially a set forth.

1T. ln a device of the class described, the combination of a guide rod, a carriage movable thereon, a feed screw, a spring arm on said carriage, a shaft, a worm gear and a toothed wheel mounted thereon between the said spring arm and the said carriage, the worm gear meshing with the said feed sei-ew. a spring vfor holding the 4toot hed wheel against theiguidc rod and a stronger spring for holding it away therefronrii,` rotatable means for releasing or su-ppontniu' the last named spring and an indicator connect d to lie said rotatable means, substantially a. set

orth. 'l

combination of a movable arriage, a feed screw, a worin wheel rotatably mounted on said carriage in engagement with said feed screw, means actuated by the rotation of said worm wheel for imparting a progressive movement to the carriage and means for locking the said worm wheel against' rota4 tion, substantially as setforth.

19. in a device of the class described, the combination of a movable carriage, a rotatable feedscrew, a spring t3 secured to the said carriage, a worm wheel engaging said feed screw, and a support for said worm wheel the end of which engages a slot 8 formed in the free end of said. spring, substantially as set forth. v,

20. ln a device of the class described, the combination of the feed screw, tra veling carriagl, rot-ating worm wheel, and means for locking thc same against rotation, and an indicator movable with said locking means for designating the rate of feed of said carriage, substantially as set forth.

2l.' ln a device of the class described, the combination of a movable carriage, a feed screw, rotatable means on said carriageAin engagement with said feed screw, means actuated by the rotation of the rotatable means foriniparting a progressive movement to the` carriage, and means for locking said rotatablel nieans against' rotation, and an indicator movable with sai'd loclcine means for designating the. rate of feed of the carriage, siib. stantially asoset forth. il

22. In a device of the class descr-ib d, the combination witli'thc feed screw and traveling carriage, of 'a worm wheel rotatably mounted on said carriage, a stationary member, means rotated by said worin wheel and coperating with vsaid stationary member, and means for severing the. operative coivnec'tion between the stationary member an worm wheel, substantially as set forth.

Q3. ln a device ot' the class described, the combination with the feed screw a1id\fti'a.veling carriage, of a worm wheel rotatably 1S. In a device of the class described, the

sie y 936,264

nmnnteil en said carriage in engagement i leekinjY the worin wheel against rotation alnl with .said feed screw, and means operating tlnelm'li said wenn wheel for feeding said carriage at a plurality of dillleient Speeds,

substantially as set fel-th.

Q44. [n a device et' tlle class described, the combination with a movable carriage and a feed sei-ew, 0i ay vm'ni'wheel on said cai'- i'iage and meehing` with the Said feed Screw, a fixed abut-nient with which the Worin Wheel eopeiatesI te advance the Carriage by a diflaential movement, and a single means fmei' simultaneously ,destroyingl the coperaliive relation between the Worm wheel and 15 the abutment to permit the Worin Wheel te be fed as a nut by the lteecl screw, substantially as set forth.

This Specification signed and witnessed this 11th day of Septen'ibei1 1907.

HERMAN NVOLKE. Witnesses H.A H. DYKE, (ln/mada l". RonseN. 

